13T8 
MESSES. J. B. LAWES, J. H. GILBERT, AED M. T. MASTERS, 
plot became more gramineous tban that on the former, and it included a larger number 
of other grasses in moderate proportion than did the produce with the ammonia- 
salts alone. In fact, with the ammonia-salts alone, with a somewhat larger total 
number of gramineous species represented in the samples, only nine came into the list 
as yielding more than 1 per cent, in any one year, whilst on plot 4-2, with the 
superphosphate in addition, there were 12 that came into this category. The 
result was a somewhat more mixed herbage so far as the gramineous components were 
concerned, due, however, it is to be supposed, rather to more of maturing tendency, 
and therefore of consolidation, giving weight, than to increased luxuriance of the 
species which came the more into prominence. 
Among the five MiscellaneaB coming into the foremost list, Rumex Acetosa was, as 
in other cases, by far the most prominent; next in order coming Achillea Millefolium , 
Conopodium denudatum, Centaurea nigra , and various species of Ranunculus . But 
of these, Rumex declined from more than 13 to only 3 per cent.; the species of 
Ranunculus almost disappeared ; Conopodium denudatum and Achillea Millefolium also 
declined, although in the second cuttings the Achillea has, in the later years, shown 
even more prominence than the Rumex, owing probably to the fact that it is less in¬ 
jured by cutting, and more particularly to the circumstance that the Rumex is more 
advanced in development at the time of the first cutting, and is therefore more 
exhausted by the profusion of seed that is formed, and is less ready to produce 
shoots in the aftermath. The only miscellaneous species that showed any tendency 
to increase, though occurring in comparatively small actual quantity, was Centaurea 
nigra. Upon the whole, however, the percentage of the Miscellanese diminished very 
greatly in the later years, as that of the Graminese increased. 
Compared with the produce without manure, the ammonia-salts and superphosphate 
of lime gave a very large, and greatly increasing, actual amount of Festuca ovina and 
Agrostis vulgaris. This mixture also gave more of each of the Poas, more also, but in 
a rapidly decreasing ratio, of Alopecurus pratensis and Holcus lanatus, and slightly 
more of Arena elatior and Dactylis glomerata. There was, however, an actual defi¬ 
ciency of Anthoxanthum odoratum, Arena flarescens , Lolium perenne, and of a number 
of others taken collectively. 
Of leguminous herbage there was so small a quantity that, practically, the whole of 
that without manure was in excess of that with the ammonia-salts and superphosphate 
of lime. 
Of miscellaneous herbage there was, compared with the produce without manure, a 
great average, though diminishing, excess of Rumex Acetosa, a much smaller and 
iminishing excess of Achillea Millefolium, but a considerable deficiency of the various 
species of Ranunculus, and of Conopodium denudatum; Centaurea nigra showed an 
excess, but only in the later years. 
Compared with the actual amount of each species grown by the ammonia-salts 
alone, the addition of the superphosphate gives, among the grasses, a greatly increasing 
